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Substance Name: Selenium, elemental
RN: 7782-49-2
UNII: H6241UJ22B
InChIKey: BUGBHKTXTAQXES-UHFFFAOYSA-N
Note
- An element with the atomic symbol Se, atomic number 34, and atomic weight 78.97. It is an essential micronutrient for mammals and other animals but is toxic in large amounts. Selenium protects intracellular structures against oxidative damage. It is an essential component of GLUTATHIONE PEROXIDASE.
Molecular Formula
- Se
Molecular Weight
- 78.96
Classification Codes
Classification Codes
- Antioxidants
- Growth Substances
- Micronutrients
- Protective Agents
- Reproductive Effect
- Trace Elements
- Tumor Data
Superlist Classification Codes
- 2007 CERCLA Priority List, Rank: 147
- 2011 CERCLA Priority List, Rank: 146
- Reportable Quantity (RQ) = 100 lb
- TWA 0.2 mg/m3
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Names and Synonyms
Name of Substance
- Selenium
- Selenium, elemental
MeSH Heading
- Selenium
Synonyms
- C.I. 77805
- Caswell No. 732
- CCRIS 4250
- CI 77805
- Colloidal selenium
- EC 231-957-4
- EINECS 231-957-4
- Elemental selenium
- EPA Pesticide Chemical Code 072001
- Gray selenium
- HSDB 4493
- Selen
- Selen [Polish]
- Selenate
- Selenium
- Selenium alloy
- Selenium base
- Selenium dust
- Selenium elemental
- Selenium homopolymer
- Selenium metallicum
- Selenium, colloidal
- Selenium, metallic
- UNII-H6241UJ22B
- Vandex
Systematic Name
- Selenium
Superlist Names
- Selenium
- Selenium and compounds
- Selenium compounds
- Selenium powder
- Selenium powder [UN2658] [Keep away from food]
- Selenium, elemental
- UN2658
Registry Numbers
CAS Registry Number
- 7782-49-2
FDA UNII
- H6241UJ22B
Other Registry Numbers
- 11125-23-8
- 11133-88-3
- 12640-29-8
- 12640-30-1
- 12641-96-2
- 12733-65-2
- 37256-19-2
- 37258-85-8
- 37276-15-6
- 37368-02-8
- 50954-17-1
- 51882-60-1
- 95788-45-7
System Generated Number
- 0007782492
Structure Descriptors
InChI
InChI=1S/SeInChIKey
BUGBHKTXTAQXES-UHFFFAOYSA-NSmiles
[Se]Toxicity
Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
---|---|---|---|---|---|
rabbit | LDLo | intravenous | 2500ug/kg (2.5mg/kg) | Journal of Obstetrics and Gynaecology of the British Empire. Vol. 35, Pg. 693, 1928. | |
rat | LCLo | inhalation | 33mg/m3/8H (33mg/m3) | BLOOD: HEMORRHAGE LUNGS, THORAX, OR RESPIRATION: CHANGES IN LUNG WEIGHT LUNGS, THORAX, OR RESPIRATION: ACUTE PULMONARY EDEMA | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 4, Pg. 458, 1951. |
rat | LD50 | intravenous | 6mg/kg (6mg/kg) | AMA Archives of Industrial Hygiene and Occupational Medicine. Vol. 4, Pg. 458, 1951. | |
rat | LD50 | oral | 6700mg/kg (6700mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Toxicology and Applied Pharmacology. Vol. 20, Pg. 89, 1971. |